Question: What is the narrative time described by the work of William Weatherall Wilkins?
Paraphrase: Give me the name of  narrative time explained by the work of William Weatherall Wilkins
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q27477095 wdt:P1441 ?X . ?X wdt:P2408 ?answer}
Answer: Great Depression, 1930s